METHODS AND SYSTEMS FOR MULTICAST CONTROL AND CHANNEL SWITCHING FOR STREAMING MEDIA IN AN IMS ENVIRONMENT

摘要

Systems and methods according to the present invention address this need and others by reducing the delay in channel zapping for streaming media, e.g., Internet Protocol television (IPTV). This delay is reduced by performing channel zapping through an Internet Multimedia Subsystem (IMS) architecture using Session Initiation Protocol (SIP) signaling.